{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "There were 14 of 151 ( 9 . 3 % ) in the DFMO plus sulindac group and 4 of 139 ( 2 . 9 % ) in the placebo group who experienced at least 15 dB hearing reduction from baseline in 2 or more consecutive frequencies across the entire range tested ( P = 0 . 02 ) ."}
{"Chemical": ["DFMO", "sulindac"], "Disease": []}